Does it sound like I’m overthinking? Less sex after 7 years & pregnant

My husband and I have been together almost 7 years, married for about 1.5 years. I’m pregnant and huge, I’m a SAHM to our other child & he works a highly stressful job. I’d say he works probably 60-80 hours a week due to understaffing and a drive he has to save, etc., we’re both 23.

When we first met, the first year we had sex several times a day - sometimes 4-5 times a day - honeymoon stage and all that. After that it tapered off to several times a week. After our first child and more work, etc, I’d say we do sexual things 1-2 times a week. (Sex or other things). When we tried for this baby we went at it almost every single day for weeks even if he was tired.

Since the third trimester, we’ve been having actual sex less and less and more of other activities about once a week. I can probably count on one hand the amount of times we’ve had actual sex since I was pregnant, either due to him or me not feeling up to it. Now that I’m bigger we’re more in the habit of oral, mutual masturbation, etc. Sometimes we’ve gone almost two weeks with nothing at all. We still cuddle, spend time together, etc, but I’m worried and up late overthinking about our sex life lol. He says he doesn’t initiate often because he’s always stressed, tired or not in the mood. It makes me feel Invisible and very unsexy to be shot down so much. He apologizes but still doesn’t really initiate, unless rarely. Lately I have to heavily hint or bring up that I want to be sexual with him. And most of the time, I’m shot down. He says he has a lower sex drive due to work stress and it has nothing to do with me.

Am I overthinking this? Is this normal?

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