I’m a bit concerned

Maggen

So I’m currently 5 months pregnant. Me and my boyfriend haven’t announced it through social media. Today I mentioned to my boyfriend that when we find out the sex on the 1st I will post it. His response was to wait and I told him I have been waiting 5 months it’s about time I announce it. When I asked him why should I wait he said that he didn’t want his girl co worker finding out till she left the job (in a couple weeks) but to me it’s like why does it matter that she knows or not and he couldn’t give me a reason. So I kinda feel like maybe they had / have something and that’s the reason he wants to wait to avoid her mentioning something to me. But I also could be full of hormones and might just be taking this the wrong way. I honestly don’t know....no he’s never cheated from what I know and he’s never gave me a reason to think they he ever has....

Update : so I actually been looking into our phone log to see if he texts her when I’m not with him and I don’t see anything of her number that would cause me to suspect something ... I did reach out to her and asked her if there is something she has to tell me and she came out very nasty and said “no I do not” I asked him again on Saturday night as to why he didn’t want her knowing and he said she has clicks with people they work with and that he knows she will go and tell them and they will sit at his job ( he works at a bar ) and ask him questions and make comments about the baby and he said he doesn’t want to deal with anyone being negative to our family especially the baby so he would rather wait till she leaves and not have to deal with her friends or her comments. Still sounds suspicious ?