YOU SAID:

I went to the beach today and saw a seagull but the seagull was pregnant and having a baby

INTO JAPANESE

今日はビーチに行ってカモメを見ましたが、カモメは妊娠していて赤ちゃんができました

BACK INTO ENGLISH

Today I went to the beach and saw gulls, but the gulls were pregnant and had a baby

INTO JAPANESE

今日、私はビーチに行ってカモメを見ましたが、カモメは妊娠していて、赤ちゃんがいました

BACK INTO ENGLISH

Today, I went to the beach and saw a gull, but the gull was pregnant and had a baby

INTO JAPANESE

今日、私はビーチに行ってカモメを見ましたが、カモメは妊娠していて、赤ちゃんがいました

BACK INTO ENGLISH

Today, I went to the beach and saw a gull, but the gull was pregnant and had a baby