Am I wrong for feeling this way ?

Recently me and my husband have been trying to conceive but for some reason we can’t I ovulate I have regular periods everything seems to be fine . But lately on I been feeling jealous everyone is out announcing their pregnancies and having these stories about how they got it on the first try and it makes me feel like I am never going to get pregnant. Recently my sister in law had her baby and I literally was jealous she got pregnant while on the pill and I told my self how is it possible for her to get pregnant and me who has been trying can’t ? I try not to let it show I still tell my friends and family congratulations I give them gifts and stuff but I can’t help to feel jealous 😞 my husband tells me when it’s the right time it will happen and it also doesn’t help that his family keeps asking me when are we going to try for the girl (we have 2 boys) or they tell me “you better get pregnant by the end of this year”. I feel so much pressure I guess me stressing about it may be the cause of it . But has anyone felt this way or am I just wrong for feeling this way ?