Probably nothing. Many women do not gain weight, and may even lose it in the first trimester. Blame nausea and tiredness.
in the second
After a sperm fertilises an egg, the female is pregnant. Pregnancy symptoms include: * missed period, * nausea with or without vomiting, * tiredness, * dizziness, * breast changes and breast tenderness, and * frequent urination. Feelings of sickness (nausea) affect the majority of women during pregnancy, particularly during the first three to four months. Tiredness may be more pronounced during the first and third trimesters. (1st trimester = months 1-3, and 3rd trimester = months 6-9)
Four weeks along is in the first trimester. The first trimester ranges from week 1 - week 12, or the first three months.
First trimester.
Four weeks along is in the first trimester. The first trimester ranges from week 1 - week 12, or the first three months.
There is no fourth trimester. The first trimester is the first 3 months, the second trimester is months 3-6, and the last is months 6-9.
The first trimester is most critical for the development of a baby. The babies brain is formed during the first trimester.
The first trimester begins from the moment you conceive until the 12th or 13th week of pregnancy.
The first trimester is 0-12 weeks of pregnancy, roughly 3 months
just to let you know the first trimester starts from 0-13 weeks and the second trimester is from 14 weeks to the 28th weeks and the 3 trimester from 29 weeks to 40 weeks or whenever you deliver they are not all equal the 2nd trimester is the most difficult and the longest with the last trimester actually being your shortest. Good luck with your pregnacy. :)
The embryonic stage is a part of the first trimester. The first trimester is the first three months of pregnancy and the embryonic period ends around week 8 and it then becomes a fetus.