Husband won’t cum in me

I’ve been with my husband for 10 years now. I’ve been on the pill and we used condoms for most of our relationship. I got off the pill because I travel lots for work and I wasn’t taking it consistently everyday due to the time difference. I haven’t been on the pill now for over a year and just a few months ago we decided no pill and no condom if we get pregnant we’ll deal with it. I’ve gotten pretty baby fever lately, all my friends kids are turning one and I’m the only one without a child. Truth is I’m very focus on my career but there is this other part of me that really wants career and baby. So we’re having unprotected sex and leaving it to faith but my husband doesn’t ever cum in me he’s so nervous!! How do I get him comfortable with the idea?